2x4 Roof Rafter Span

2 are indicated below.

2x4 roof rafter span. If your project had a rafter length of 8 or less a safe and strong method is to use 2x8 framed 16 on center. Why not just use 1 2 ply so the h clips and other roffing products work with the roof like drip cap and so on. Span calculator for wood joists and rafters also available for the android os. Douglas fir maximum horizontal roof rafter span for lumber grade selected structural and no.

1 psf lb f ft 2 47 88 n m 2. Visit the roof framing page for more information on cutting roof rafters and visit the roof pitch calculator for determining rafter lengths based on rise and run. Dead load weight of structure and fixed loads 15 lbs ft 2. 1 ft 0 3048 m.

Instead of over building why not make the shed bigger with that size lumber. Although the standard spacing of roof trusses may be the same as that of rafters with 24 inch spacing being a common option the design of a truss may allow for the use of a lower grade of lumber than would be required for rafters with comparable spacing and span. Rafter span tables use these tables to determine lengths sizes and spacing of rafters based on a variety of factors such as species load grade spacing and pitch. My question is can i use 2 x 4 on edge spaced.

Also available for the android os. Hi i saw on your webpage the pole barn guru stated the trusses could be spaced 12 apart i called and was told it is a double truss one on each side of a post that is on 12 centers. The pitch and span of your roof will dictate how long of a rafter you ll need use maximum span calculator to help you find your rafter size. Structures such as sheds or barns can be frames with rafters every 24 again make sure to consult local codes.

Reader dave in michigan writes. If you look at the rafter span chart you ll notice that 2x4s can be used for rafters on spans up to 11. Can 2 4 roof purlins span 12 feet. It is always better to have a large rafter rather than be concerned with a sagging roof.

Live load is weight of furniture wind snow and more. If you live in an area that requires a shed roof rafter to support a heavy load then an spf rafter can only span 7. An syp rafter can span 11. That alone is over kill.

As mentioned above a 2 4 spf shed roof rafter can span 11. 2x4 span 8 feet with a 20 lbs psf live 10 dead load. That is exactly what i have double trusses on each side of a post on 12 centers.